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Latest company case about Introduce the difference between flame testing and glow wire testing?

Introduce the difference between flame testing and glow wire testing?

Flame testing and glow wire testing are two approaches to determining the flame-retardant performance of materials like various plastics and the electronic devices that incorporate those materials. Flame testing are defined in IEC 60695-2-2, while glow wire testing is defined in IEC 60335 and IEC 60695. UL94 is another material burning test and can be either a horizontal burn (UL94 HB) or a vertical burn (UL94 V) test. This FAQ looks at glow wire testing, needle flame, and UL94 burning to test and compares the performance and testing requirements for the various approaches. These tests are designed to protect against fault conditions like excessive leakage currents, poor (high resistance) electrical connections, or outright short circuits that can cause overheating resulting in fire. Since connectors can be subject to all these fault conditions, they are among the components most often required to pass these tests. The glow wire and needle flame tests are sometimes used in combination. The glow wire test is administered first, and if the part fails, the extent of the burning hazard can be further assessed with the needle flame test.     Glow wire testing: Glow wire testing uses a heating element at a pre-determined temperature, depending on the specific test. The heating element is called the ‘glow wire.’ In addition, a fiber cloth called tissue paper is below the material or device being tested. After reaching the required temperature, the glow wire is pressed against the test specimen using a force of 1 N for 30 seconds (Figure 1). If the specimen catches fire, the ignition start time, duration, flame height, and, if the material drips, notes regarding if the fibers of the tissue paper are charred or ignited are recorded. The test is repeated three times using new specimens, changing the mounting orientation so each unique surface, like front or back, top or bottom, and left or right side, is tested. Test samples for glow wire testing should be at least 60 mm long and at least 60 mm wide with a thickness of 0.75 ±0.1 mm, 1.5 ±0.1 mm, or 3.0 ±0.2 mm.     Glow wire testing complies with IEC 60335-1 for household and similar electrical appliances for resistance to heat and fire and includes a glow wire ignition temperature (GWIT) of at least 775 C° as defined in IEC 60695-2-13 and a glow wire flammability index (GWFI) above 850 C° defined in IEC 60695-2-12. Glow wire performance requirements are defined in IEC 60335. Glow wire testing can be performed on raw materials and end products. Compliance is defined differently for the two cases.     Flame testing: The IEC needle flame and UL 94 tests take different approaches to certify material and product safety. The needle flame test uses a burner with a 0.9 mm tip and butane gas at an angle of 45°. It’s designed to evaluate the hazard of small flames caused by fault conditions. Needle flame tests are evaluated according to the requirements of the specific product standard. For product standards that don’t specify needle flame testing, the generic requirements are: The test sample does not produce flames, and the paper does not ignite, or a white pine board does not carbonize. After the needle flame is removed, the flame duration of the test sample, surrounding parts, and the bottom layer is less than 30 s, the parts surrounding the test sample does not continue to burn, the paper does not ignite, and a white pine board does not burn. UL 94 is a material burning test and can be a UL94 HB test or a UL94 V test (Figure 3). In both tests, an open flame is applied to the specimen for a set amount of time (see Table 1 below). UL 94 has been harmonized with IEC 60707, 60695-11-10, 60695-11-20, and ISO 9772 and 9773.     A material having a thickness between 3 and 13 mm will be classified as a UL94 HB (slow burning) material if it has a burn rate of 40 mm per minute or less. For material with a thickness of less than 3 mm, the burning rate can’t exceed 75 mm per minute. The material will also be rated as HB if it stops burning before the 100 mm mark, regardless of thickness. Vertical burn ratings are more nuanced (Table 1). The 5VA or 5VB ratings require testing with a flame ignition source about five times more severe than that used in the V-0, V-1, V-2, and HB. And 5VA and 5VB specimens may not drip any flaming particles.   If you are interested in learning more, feel free to contact us!  
2025-01-13
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Latest company case about Revolutionizing Environmental Testing with Climatic Chamber

Revolutionizing Environmental Testing with Climatic Chamber

Introduction: At SINUO, we are committed to delivering innovative solutions that meet our customers’ unique needs. Our recently launched Climatic Chamber has received exceptional feedback, demonstrating its ability to meet demanding requirements in industries such as electronics, electricians, electrical appliances, plastics, etc. This case study highlights the success of Environmental Testing Chamber, showcasing how our Climatic Chamber revolutionized their testing process.     The Challenge: Achieving consistent environmental conditions for product testing or complying with regulatory standards. They required a reliable, customizable solution capable of maintaining precise temperature and humidity control over extended periods.     The Solution: Climatic Chamber was tailored to meet these exact needs, offering: Customizable Configurations: Options to adjust volume, temperature, and humidity ranges. Advanced Technology: Features like intuitive controls, energy efficiency, or rapid recovery times. Reliability: Ensuring consistent performance under rigorous testing conditions. Our team worked closely with Customer to integrate the Climatic Chamber seamlessly into their workflow, providing training and support to maximize its benefits.         Conclusion: Whether you’re looking to optimize testing processes or achieve unparalleled environmental control, our Climatic Chamber is designed to exceed expectations. Ready to Revolutionize Your Testing? Discover how Climatic Chamber can benefit your operations. Contact us today for a consultation.  
2024-12-24
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Latest company case about New Generation Battery Testing Equipment Series Officially Coming Out

New Generation Battery Testing Equipment Series Officially Coming Out

Sinuo Testing Equipment Co., Limited has officially launched its latest series of battery testing equipment designed to meet the increasing demands of the battery industry. This innovative series aims to enhance the accuracy and efficiency of battery performance testing.   At present, this batch of equipment has been successfully accepted in the customer's laboratory, and we have received good customer feedback. They expressed great satisfaction with our equipment.     The new equipment features precision testing capabilities, utilizing advanced measurement technology to ensure reliable results. Its versatility allows compatibility with various battery types and testing standards, while a user-friendly interface simplifies operation for quick adaptation by users.     This series is ideal for battery manufacturers, research laboratories, and the automotive sector, providing essential support for electric vehicle and energy storage system development.     For more information, visit our website or contact our sales team. We will continue to innovate in the future and hope to design more advanced laboratory testing equipment for our customers.  
2024-10-29
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Latest company case about IEC 60335-1 Household Appliance Laboratory Construction-On-site Installation in Korea

IEC 60335-1 Household Appliance Laboratory Construction-On-site Installation in Korea

We are honored to build a set of IEC 60335-1 test laboratory for Korean customers.  Designed and manufactured in accordance with IEC60335-1 standard requirements.   This laboratory covers IPX1-8 level tests, door endurance tests, impact tests, etc.   For example, the maximum diameter of the IPX3~4 level swing pipe test system reaches 1600MM.   Single Arm Drop Test Machine is specially used to test the damage of product packaging caused by falling, and to evaluate the impact resistance during transportation and handling. It can perform free drop tests on the surfaces, corners and edges of packages, and is equipped with a digital height display and a decoder for height tracking.   We customize the planning according to the customer's laboratory size, not only considering the laboratory's waterproof performance and drainage system, but also considering the laboratory's door opening direction, waterproof material design and other designs. Let our expertise become the most persistent foundation of your laboratory, we guarantee to provide you with reliable laboratory solutions!
2024-09-28
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Latest company case about On-site Installation and Commissioning of Static Load Test Equipment for Power Grid Cabinets

On-site Installation and Commissioning of Static Load Test Equipment for Power Grid Cabinets

Last week, our grid cabinet static load test equipment was successfully installed and debugged at the customer's site, marking that the equipment was officially put into use, providing customers with more efficient and reliable testing services.   As one of the key equipment in the power industry, the grid cabinet static load test equipment plays an important role in the stability and reliability of the power system. The successful completion of this installation and commissioning indicates that our company's technical strength and service level in this field have been recognized by customers.   During the installation and commissioning process, our technical team carefully organized, conscientiously and responsibly, overcame various difficulties, and ensured the smooth installation and commissioning of the equipment. After rigorous testing, the equipment performed well and met the requirements and expectations of customers.   The customer expressed high appreciation for our grid cabinet static load test equipment, believing that the installation and commissioning of the equipment was very professional and efficient, and provided customers with reliable technical support and service guarantees.   The project leader of our company said that the successful completion of the equipment installation and commissioning was due to the close cooperation and professional technology of the team, and also demonstrated the company's leading position and technical advantages in the field of power testing equipment.   Through this successful installation and commissioning, Sinuo Testing Equipment Co., Limited further consolidated its position in the power testing equipment market. It also laid a solid foundation for future cooperation with customers and will continue to be committed to providing customers with better products and services.
2024-08-28
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Latest company case about Successful Sale of Testing Equipment to Türkiye's Laboratory

Successful Sale of Testing Equipment to Türkiye's Laboratory

We are pleased to share with you an exciting success story regarding our recent sale of a batch of testing equipment to a prestigious laboratory in Türkiye. This achievement highlights our commitment to delivering high-quality testing solutions to clients around the world.   The laboratory, renowned for its dedication to scientific excellence and innovation, was in need of advanced testing equipment to enhance their research capabilities and ensure accurate and reliable results. Recognizing the value and reliability of our testing equipment, they entrusted us with meeting their specific requirements.     After thorough consultations and understanding their unique needs, we proposed a tailored solution that comprised a range of cutting-edge testing instruments and systems. Our team collaborated closely with the laboratory staff to customize the configuration and specifications of the equipment, ensuring it aligned perfectly with their research objectives.   Throughout the sales process, our dedicated overseas sales team provided exceptional support, addressing all inquiries promptly and professionally. We worked closely with the laboratory's procurement department, offering detailed technical information, competitive pricing, and comprehensive after-sales service packages.     Thanks to our team's efforts, we successfully secured the order for the testing equipment, which included Electrical Appliance Testing Equipment, Water Ingress Testing Equipment, Environmental Test Chamber, etc. Our logistics team efficiently managed the shipping process, ensuring timely delivery to the laboratory's location in Türkiye.     Upon receiving the testing equipment, the laboratory expressed their satisfaction with the quality, performance, and reliability of our products. Our equipment seamlessly integrated into their existing laboratory infrastructure, enabling them to conduct a wide range of advanced experiments and tests, furthering their research capabilities.   This successful sale not only reinforces our reputation as a trusted provider of testing equipment but also strengthens our presence in the Türkiye market. It serves as a testament to our commitment to delivering outstanding customer service, superior products, and tailored solutions that meet the evolving needs of laboratories worldwide.   We extend our heartfelt appreciation to the entire team for their dedication and hard work in ensuring the success of this sale. Let us continue working together to explore new opportunities, expand our customer base, and provide innovative testing solutions to laboratories across the globe.
2024-06-27
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Latest company case about Circuit Breaker Tripping Characteristics Test Project in Russia

Circuit Breaker Tripping Characteristics Test Project in Russia

After several video conferences, we successfully finalized the final design of the Circuit Breaker Tripping Characteristics Test Project with the Russian customer. The project started manufacturing in April and was completed in early May.   The test equipment is designed and manufactured according to the standard requirements of IEC60898-1 clause 9.1, 9.8, 9.9 and 9.10, IEC60947-1 clause 7.2.1 and etc. It is made to verify that the circuit-breaker complies with the requirements, which apply 1.13 times, 1.45 times, and 2.55 times the rated current to test to see if it trips within the specified time. The test equipment can also test the instantaneous tripping characteristics of the circuit breaker, that is, apply 3 to 20 times the rated current for the test whether it jumps out of the time. Also meets standard 28-day test requirements. The device supports Russian language system.     The equipment chamber is welded with high-quality steel, the plate is coated and sealed, and the surface is anti-static, anti-rust, and anti-corrosion coated. The upper part of the equipment is equipped with a panel, a power switch, and a variety of wire ends (for delay tripping test). The equipment is reasonably designed and used with the advantages of convenience, simple operation, reliable performance and beautiful appearance.   Chamber 1, Chamber 2, and Chamber 3 are independent and can be freely combined for testing.     Then our sales team and technical team help each other and cooperate with customers' video acceptance.  
2024-05-09
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Latest company case about IEC60529 IPX Laboratory in United Arab Emirates

IEC60529 IPX Laboratory in United Arab Emirates

We are honored to have built an IP testing laboratory for customers in the UAE. This set of laboratories covers IPX1-8 testing, as well as dustproof testing and impact testing. It is designed and manufactured in accordance with the standard requirement of IEC60529 IPX clauses.   For example, IPX3~4 oscillating tubes test system maximum diameter reaches 1600MM. IPX7 system mainly used to test the product waterproof performance in the soaking environment. Through the test, check whether the product waterproof level meet the requirements, for product design, R&D and factory inspection use.     We customize and plan according to the customer's laboratory dimensions. Not only the waterproof performance and drainage system of the laboratory must be considered, but also the design of the laboratory door opening direction, waterproof materials, etc.   Professional people do professional things, and we guarantee to provide you with reliable laboratory solutions!  
2024-04-09
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Latest company case about IEC 62368 Audio/Video, Information Technology Equipment Test Laboratory

IEC 62368 Audio/Video, Information Technology Equipment Test Laboratory

We were so glad to participate in our Vietnam customer's IEC 62368 Audio/video, Information and Communication Technology Equipment test  laboratory construction in 2023, we have supplied a series of testing equipment based on IEC 62368-1:2018 to our customer,and won good comments.   The electric vibration test system is one of the testing equipment that we've supplied, it is used to simulate the damage of products and individual components in the actual working environment. Its working principle is similar to that of a speaker, that is, the energized conductor is acted upon by a force in the magnetic field. This force is the excitation force of the vibration test bench. The working process of the system is that the excitation coil and the moving coil in the table body form two mutually perpendicular magnetic fields when energized. The two magnetic fields cut the magnetic lines of force with each other to generate excitation force. The vibration acceleration (a), amplitude (mm), frequency (HZ) and other indicators generated in these excitation phenomena are input to the vibration controller through the vibration sensor. The controller analyzes and processes the output to the preamplifier and power amplifier, and then the power amplifier to the stage body, and so on, to keep the vibration test system running within a stable test index. In this process, the cooling fan is used to cool the heat generated by two mutually perpendicular magnetic fields passing current. The temperature generated in the magnetic field cannot be higher than 110°C, otherwise it will cause the temperature to be too high and cause an alarm. This requires that the laboratory environment temperature where the vibration test system is located must be at normal temperature.   Installation and commissioning at customer's site      
2024-03-09
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Latest company case about Table Fan Bladeless Fan Energy Efficiency Test System has been finished in Philippine

Table Fan Bladeless Fan Energy Efficiency Test System has been finished in Philippine

We have designed and built thisTable Fan Bladeless Fan Energy Efficiency Test System for our Philippine customer, this system has been installed on customer site in the beginning of 2024 successfully, and it is running under good conditions.     This test device is designed in accordance with IEC 60879-2019 "Comfort fans and regulators for household and similar purpose- Methods for Measuring Performance ".   It can accurately measure the performance parameters such as the wind speed, air volume, fan speed, fan power consumption, and fan energy efficiency of table fans, floor standing fans, pedestal fans, etc., and can realize the sampling and analysis of fan products, product quality inspection, and research and development.      
2024-03-09
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Latest company case about 10-Stations Refrigerator Performance Lab

10-Stations Refrigerator Performance Lab

This refrigerator performance lab designed and manufactured by Sinuo Testing Equipment Co., Limited, successfully delivered and installed on our customer's site in 2022.   This installation can be used to test the performance of 10 Household vertical refrigerators or 6 Chest Freezer.   In July 2022, this system has been produced and inspected by customers.   The system was shipped to the Philippines laboratory in the same month.
2024-03-09
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Latest company case about Door-to-Door Installation Electric Vehicle Charging Interface Drive-over Test Machine

Door-to-Door Installation Electric Vehicle Charging Interface Drive-over Test Machine

New energy vehicles can be seen everywhere in life, which has led to more items that need to be tested. This is required in relevant standards such as IEC62196-1 and IEC62752. The drive over test is essential for the safety of new energy vehicles.   Taking into account the force value required for the drive over test required by the standard, the impact force of the tire, and the safety of the operator, we designed and manufactured this charging interface drive over test equipment. It is used to conduct vehicle drive over tests on charging vehicle power supply plugs, vehicle plugs and function boxes to determine their reliability after drive over.     The entire equipment adopts a cold-rolled steel plate protective box structure design. The surface of the box is treated with Teflon paint. The bottom of the box is covered with simulated cement floor. The rolling mechanism can simulate a car tire rolling over an object and then sliding up and down freely. The charging pile plugs bear the same pressure. The driving device drives the rolling mechanism to achieve forward and backward rolling movements. The main components are made of stainless steel and aluminum parts. (Make sure the tire is rolling over the sample under normal rolling conditions).     The device weighs 2 tons. We are responsible for installation and commissioning at the customer's site. Begin by laying the power plug and vehicle plug with the manufacturer's recommended cables loosely on the cement floor. Use a car tire with the same load as P225/75R15 to apply a rolling force of (5000±250)N or (11000N±550)N, and roll over the charging plug or plug function at a speed of (8±2)km/h. Box (tire inflation pressure 220±10)kPa. It is used to simulate and test the ability of the power supply plug or plug function box to withstand vehicle crushing damage. This equipment has a device to prevent sample movement.      
2024-02-23
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